Fruit-jar wrench.



PATENTED MAR.'22, 1904.

,2 .A W W% H I mum A J L W 9 fia fi UNITED STATES Patented. March 22, 1904.

PATENT OFFICE.

WILLIAM A. TWINING, OF CLEVELAND, OHIO, ASSIGNOR TO WILLIAM E. DONNELLY, OF CLEVELAND, OHIO.

FRUIT-JAR WRENCH.

SPECIFICATION forming part of Letters Patent No. 755,081, dated March 22, 1904.

Application filed January 26, 1903.

To all whom it may concern:

Be it known that I, WILLIAM A. TWINING, a citizen of the United States, re'siding at Cleveland, in the county of Ouyahoga and State of Ohio, have invented certain new and useful Improvements in Fruit-Jar Wrenches; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to wrenches especially adapted for screwing caps on and off from fruit-jars, and has for its object simplicity and economy of construction and strength and effectiveness in operation, also adaptability to different-size covers.

My invention consists in the peculiar construction of the wrench and assemblage of parts, all of which will be hereinafter fully set forth and claimed.

In the drawings, Figure I is a view in isometric, illustrating a wrench constructed according to my invention, showing the same as applied to a fruit-jar cap 'and in position for screwing the cap on the jar. Fig. II is a plan view illustrating the position in solid and dotted lines of the wrench and its parts when the same is applied and adjusted for opening or closing the cap. Fig. III is. a plan view illustrating how my wrench may be utilized for a cover of larger diameter than that illustrated in Fig. II.

A represents a lever which is pivotally attached to an embracing ring B. This embracing ring is oblong and is formed of plate metal of sufficient width and thickness to stand the necessary strain. The inner contour of the ring B, as at B, from the point I) to the point I) is curved so as to embrace snugly a cap or cover which is to be operated upon, and as its opposite portion, as at B from the point I) to b is formed of such curvature as to act as a cam for adjusting to position a pivoted curved engaging jaw O, this jaw O being in turn pivotallysecured, as at 0, tothe inner end of the pivoted lever A and being formed with a concave inner portion 0, which is adapted-to the curvature of a cap in such a way as to embrace it snugly. The opposite edge .of the jaw $ria1 no. 140,495. (No model.)

important element of my invention, inasmuch as were the jaw O free from contact with other parts of the mechanism in its shifting from one part to the other without altering its position in relation to the lever A it would be in the way, and the wrench could not readily be placed upon the cap without utilizing bothhands of the operator or manipulator.

The operation of my wrench canbe easily understood from an examination of the drawings in connection with the above description, it being only necessary to state that as it is desired to screw down or unscrew the cap the lever A is shifted to either position, as illustrated in Fig. II, when the jaw C will adjust itself by contact with the inner portion of the ring B to proper position, so that the wrench will receive the cap, and then by turning the handle in an opposite direction the cap may be screwed down or unscrewed through the engagement of' the jaw O, which hugs the cap snugly-between its concave portion 0 and the portion 5 I) of the embracing-ring B.

By forming the ring B of more or less greaterdiameter the wrench can be made so as to adapt itself to varying diameters of caps or covers.

Another important feature of this invention is economy in construction and assemblage, because in forming the parts the ring B and jaw O can be stamped out of one and the same piece of material or blank, and the jaw O can be formed from the same die and at the same time as the forming of the ring D. It being struck from the middle portion of the blank, also all the pivot-holes may be formed at this operation, and in assembling the parts it is only necessary to place them in proper juxtaposition, through the holes, and with a single blow or two of, the hammer or machine the wrench is pass suitable rivets thereof, and a jaw having a curved outer face pivoted to the under face of the inner end of said lever whereby it will lie within said ring, the curved face of said jaw being adapted for engagement with the curved walls of the cutout portions of said ring substantially as and for the purpose specified.

Signed at Cleveland, in the county of Guyahoga and State of Ohio, this 24th day of July,

WILLIAM A. TWINING. Witnesses:

E. B. DoNNELLY, W. E. DONNELLY. 

